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102 lines
2.3 KiB
102 lines
2.3 KiB
///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1998, Microsoft Corp. All rights reserved.
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//
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// FILE
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//
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// cmdbase.cpp
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//
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// SYNOPSIS
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//
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// This file defines the class CommandBase.
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//
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// MODIFICATION HISTORY
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//
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// 02/20/1998 Original version.
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// 02/15/1999 Make commands MT safe.
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// 05/30/2000 Add trace support.
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//
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///////////////////////////////////////////////////////////////////////////////
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#include <ias.h>
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#include <iasdb.h>
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#include <cmdbase.h>
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CommandBase::CommandBase() throw ()
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{
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dbParams.pData = NULL;
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dbParams.cParamSets = 0;
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dbParams.hAccessor = 0;
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}
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CommandBase::~CommandBase() throw ()
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{
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finalize();
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}
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void CommandBase::initialize(IUnknown* session)
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{
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setSession(session);
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setCommandText(getCommandText());
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setParamIO(createParamIO(command));
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setParameterData(this);
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}
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void CommandBase::finalize() throw ()
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{
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releaseAccessor(dbParams.hAccessor);
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command.Release();
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}
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void CommandBase::setCommandText(PCWSTR commandText)
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{
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CheckOleDBError(
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"ICommandText::SetCommandText",
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command->SetCommandText(DBGUID_DBSQL, commandText)
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);
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CComPtr<ICommandPrepare> prepare;
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_com_util::CheckError(
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command->QueryInterface(
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__uuidof(ICommandPrepare),
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(PVOID*)&prepare
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)
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);
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CheckOleDBError(
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"ICommandPrepare::Prepare",
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prepare->Prepare(0)
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);
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}
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void CommandBase::setSession(IUnknown* session)
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{
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CComPtr<IDBCreateCommand> creator;
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_com_util::CheckError(
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session->QueryInterface(
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__uuidof(IDBCreateCommand),
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(PVOID*)&creator
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)
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);
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CheckOleDBError(
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"IDBCreateCommand::CreateCommand",
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creator->CreateCommand(
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NULL,
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__uuidof(ICommandText),
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(IUnknown**)&command
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)
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);
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}
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void CheckOleDBError(PCSTR functionName, HRESULT errorCode)
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{
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if (FAILED(errorCode))
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{
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_com_issue_error(IASTraceJetError(functionName, errorCode));
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}
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}
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